#231C75#231C75

#231C75 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.5% C 0.144 H 277.0°. Best body text is #FFFFFF at 14.05:1 contrast (WCAG AA passes).

Color values

HEX	#231C75
RGB	rgb(35, 28, 117)
HSL	hsl(245, 61%, 28%)
HSV	hsv(245, 76%, 46%)
CMYK	cmyk(70.1%, 76.1%, 0%, 54.1%)
CIE-LAB	lab(17.79, 32.76, -49.59)
CIE-LCH	lch(17.79, 59.44, 303.45°)
OKLab	oklab(30.54% 0.0177 -0.1433)
OKLCH	oklch(30.54% 0.144 277)
XYZ	xyz(4.3182, 2.4718, 17.0757)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C75 #6E751C

analogous

#1C4175 #231C75 #4F1C75

triadic

#231C75 #75231C #1C7523

tetradic

#231C75 #751C41 #6E751C #1C754F

square

#231C75 #751C41 #6E751C #1C754F

split-complementary

#231C75 #754F1C #41751C

monochromatic

#070619 #141044 #231C75 #3228A6 #473BD0

Accessibility & contrast

On white

14.05

#231C75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#231C75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C75

14.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C75	#FFFFFF	#000000	##FFFFFF
##231C75	1.00	14.05	1.49	14.05
#FFFFFF	14.05	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F78

Deuteranopia (green-blind)

#002873

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #231c75;
/* rgb */ color: rgb(35, 28, 117);
/* oklch */ color: oklch(30.5% 0.144 277.0);

Tailwind

colors: {
  custom: {
    50: '#6b599e',
    500: '#231c75',
    950: '#000000',
  },
}

SCSS

$custom: #231c75;
$custom-light: #6b599e;
$custom-dark: #000000;

JSON

{
  "hex": "#231c75",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 117
  },
  "hsl": {
    "h": 244.719,
    "s": 61.379,
    "l": 28.431
  },
  "oklch": {
    "l": 0.3054,
    "c": 0.14436,
    "h": 277
  },
  "luminance": 0.02472
}

Semantic roles & 50–950 ramp

primary

#231C75

secondary

#A1A944

accent

#E443D8

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #231C75

Body copy rendered with the generated semantic roles for this colour.

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